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86篇 您的检索式:作者名="Baker DR"
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1Silvicultural alternatives to conventional even-aged forest man-agement-what limits global adoption?显示文摘Background: The development of forestry as a scientific and management discipline over the last two centuries has mainly emphasized intensive management operations focused on increased commodity production, mostly wood. This 'conventional' forest management approach has typically favored production of even-aged, single-species stands. While alternative management regimes have generally received less attention, this has been changing over the last three decades, especially in countries with developed economies. Reasons for this change include a combination of new information and concerns about the ecological consequences of intensive forestry practices and a willingness on the part of many forest owners and society to embrace a wider set of management objectives. Alternative silvicultural approaches are characterized by a set of fundamental principles, including avoidance of clearcutting, an emphasis on structural diversity and small-scale variability, deployment of mixed species with natural regeneration,and avoidance of intensive site-preparation methods.Methods: Our compilation of the authors' experiences and perspectives from various parts of the world aims to initiate a larger discussion concerning the constraints to and the potential of adopting alternative silvicultural practices.Results: The results suggest that a wider adoption of alternative silvicultural practices is currently hindered by a suite of ecological, economic, logistical, informational, cultural, and historical constraints. Individual contexts display their own unique combinations and relative significance of these constraints, and accordingly, targeted efforts, such as regulations and incentives, may help to overcome specific challenges.Conclusions: In a broader context, we propose that less emphases on strict applications of principles and on stand structures might provide additional flexibility and facilitate the adoption of alternative silvicultural regimes in a broader set of circumstances. At the same time, the acceptance of alternative silvicultural systems as the 'preferred or default mode of management' wil necessitate and benefit from the continued development of the scientific basis and valuation of a variety of ecosystem goods and services. This publication is aimed to further the discussion in this context.Klaus J Puettmann Scott McG Wilson Susan C Baker Pablo J Donoso Lars Dr?ssler Girma Amente Brian D Harvey Thomas Knoke Yuanchang Lu Susanna Nocentini Francis E Putz Toshiya Yoshida Jürgen Bauhus 2015Forest Ecosystems2015,2,2:4
2Magnetic resonance imaging of breast cancer: clinical indications and breast MRI reporting system显示文摘Ikeda MD Baker DR Daniel BL 2000J Magn Resort Imaging2000,12,6:1
3Mechanical consequences of core drilling and hone-grafting on osteonecrosis of the femoral head显示文摘Brown TD Pedersen DR Baker KJ 0,,:1
4Meehanieal consequences of core drilling and bone-grafting on osteoneerosis ofthe femoral head显示文摘Brown TD Pedersen DR Baker KJ 1993J Bone Joint Surg(Am)1993,75,:1
5Mechanical consequences of core drilling and bone-grafting on osteonecrosis of the femoral head 显示文摘Brown TD Pedersen DR Baker KJ 1993J Bone Joint Surg(Am)1993,75,12:1
6Metalloproteinase inhibitors: biological actions and therapeutic opportunities显示文摘Baker AH Edwards DR Murphy G 2002J Cell Sci2002,115,19:1
7Mechanical conse- quences of core drilling and bone - grafting on osteoneerosis of the femoral head 显示文摘Brown TD Pedersen DR Baker KJ 1993J Bone Joint Snrg Am1993,75,9:1
8Corticosteroids in the initial treatment of Kawasaki disease: report of a randomized trial显示文摘Sundel RP Baker AL Fulton DR 2003J Pediatr2003,142,6:1
9Effects of chronic renal failure and growth hormone therapy on the insuline-like growth factors and their binding proteins显示文摘Powell DR Liu F Baker BK 2000Pediatr Nephrol2000,14,7:1
10Mechanical consequences of core drilling and bone-gafting on osteonecrosis of the femoral head显示文摘Brown TD Pedersen DR Baker K J 1993J Bone Joint Surg(Am)1993,75,:1
11Corticosteroids in the initial treatment of Kawasaki disease: report of a randomized trial 显示文摘Sundel RP Baker AL Fulton DR 2003J Pediatr2003,142,6:1
12Metalloproteinaseinhibitors :biological actions and therapeutic opportunities显示文摘Baker AH Edwards DR Murphy G 2002Cell Sci2002,115,19:1
13Markers of Inflam mation,Coagulation and Renal Function Are Elevated in Adults with HIV Infection显示文摘Neuhaus J Jacobs DR Jr Baker JV 0,,12:1
14Cortieosteroids in the initial treatment of Kawasaki disease : report of a randomized trial 显示文摘Sundel liP Baker AL Fulton DR 2003J Pediatr2003,142,6:1
15Corticosteroids in the initial treatment of Kawasaki disease: Report of a randomized trial 显示文摘Sundel RP Baker AL Fulton DR 2003J Pediatr2003,142,6:1
16Metalloproteinase inhibitors: biological actions and therapeutic opportunities 显示文摘Baker AH Edwards DR Murphy G 2002Journal of Cell Science2002,115,19:1
17Metalloproteinase in-hibitors:biological actions and therapeutic opportunities 显示文摘Baker AH Edwards DR Murphy G 2002J Cell Sci2002,115,19:1
18Mechanical consequences of core drilling and bone grafting on osteonecrosis of the femoral head显示文摘Brown TD Pedersen DR Baker KJ 1993J Bone Joint Surg(Am)1993,75,:1
19Endogenous and xenobiotic metabolite profiling of liver extracts from SCID and chimeric humanized mice following repeated o- ral administration of troglitazone显示文摘Barnes AJ Baker DR Hobby K 2014Xenobiotica2014,44,2:1
20Long-term outcome of Macintosh reconstruction of chronic anterior cruciate ligament insufficiency using fascia lata显示文摘Johnston DR Baker A Rose C 2003J Orthop Sci2003,8,6:1
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